Crane.



H. W. JACOBS.

CRANE.

APPLICATION mum NOV. 23, won.

Patented May 1910 SHEETS-M11151 I.

an us 1111*:

H. w. JACOBS;

CRANE.

APIHCATIO}! nun NOV. 23, 1903.

iatented May 3, 1910.

2 SHEETS-SHEET 2 HENRY W. JACOBS, OF TOPEKA, KANSAS.

Specification of Letters Patent.

CRANE.

Patented May 3, 1910.

Application filed November 23, 1308. Serial No. 484,050.

To all 'whom. it may roncer' lie it known that I, llizxur ll". lu'ons. of 'ljopelta, in the county of Shawnee, and in the L ta-1t ei Kansa t have invented a certain new and useful lmprove -z-nt in t'ranes. and do hereby tlt-ilnltthat the t'ollmving is a full vlear. and exact descriptionthereof.

.\l v invention relates to an improvement in .--upportin cranes, and especially to cranes designed to be used upon movable vehicles for supporting tools of any desired type.

.lore specifically, the object of my invention i to pl'tivltiu a c ane that is; adapted for supportiir; and holding dev ces for driving sermv-spikes in cormeetion with track cars used in laying and repairini rrailroads.

l have shown one embodiment of my invention in the accompanying drawings, in \vhich-- Figure l is a fragmental side view of :1 var equipped with my crane; and Fig. 2 is a similar plan view.

In the drawings 1 is a car body which is supported upon axles 2 and wheels 3 of the usual type. To the car body is attached a power shaft l which is designed to be thrown in and out of engagement with an extension 5 thereof, b v means of a frietionclutch ti designed to be operated by means of a lever 7 connected to the extension 5b a feather key and shifter h of the usual type. The. lever T has connected thereto an operatin rod 9, which extends beyond the front end of the car body. The longitudinal extension 5 has. a taper shank 10 on its outer end, the purpose of which is to tit within a complementary taper socket ll to which it can be removablv attached by means of a ring 12.

The taper socket ll connected at its other end by means of a universal joint with a telescoping shaft 13,'tbe universal joint being covered by hemispherical shields H. The telesmpin shaft consists of a large outer member 1.3 and a smaller inner member 16, the latter being connected again to a universal joint, which latter conveys power to a taper socketl7, this universal joint being cover d by hemispherical shields 18 in the same manner as described above. The taper socket 17 is constructed to receive a taper shank 19, to which it. can be rclnovnbly s cured through the agency of a ring 20. The taper shank it conveys power direct to a scre driving tool 21. or tool of any other desin'd character. The tool 21 is retained uoin a crane lever arm 22 by retaining brackets 23, of which there are 2. This crane lever arm 22 is provided near its center with a bracket 24 \\lii 'l1 constitutes a socket for holding the outer end of the rod J at its inner end. crane lever arm 22 is supported upon a ver tical stand 25, to which is pivoted by means of a horizontal pinion 26. The stand 2 is pivoted upon a vertically located bolt 27 situated 11] the body of the car, so that the crane lc\er arms 22 can be rotated to any degree in a horizontal plane. The crane lever arm is further supported for yielding vertical movement through the agency of a pair of springs 28, one of which is situated on either side thereof. These two springs 28 are connected with each other by a saddlebar 29 upon which the crane lever arm 22 is designed to rest. By the adjustment of the springs the vertical-elevation of the crane lever arm can be readily changed and the tension of the springs regulated to suit any particular condition.

When the crane is designed to be thrown out of ccaunissien, the ring 12 can be removed and the taper socket 11 detached from the taper shank 10. When this has been accomplished the tool 21 can be removed from the outer end of the crane lever arm 22. The tool 21 and its attached shafts is thus detached from the rest of the mechanism and can now be placed upon the car body until required for further use. The crane lever arm is so constructed that itcan now be folded backwardly upon its horizontal pivot 26 until it rests upon a support located at the rear of the car.

The operation of the device is in general as followsz-During the operation of the tool, the lever 7 or the attached rod 9 has been operated so as to throw the friction gear (3 and to connect the longitudinal extension 5 with the power driven shaft 4. This results in causing the rotation of the screw-driving orothcr t vpe of tool attached to the outwardly extending shafts. When it is desired to discontinue the operation of the tool 21, the lever 7 is operated either directly or indirectly so as to sto its rotation.

The ring; 12 is removed and t e shafts disconnected at this point, and the tool is renamed from the outer end of the crane lever arm 22'. The detached tool and its attached shafts can now be placed upon the top of the. car until it is necessary to use it again. Finally, the crane lever arm 22 The is folded backwardly until it rests upon a support 30. In this position of the various parts the car is ready to be moved to another point for further operations, and when this point .is reached the same steps are gone through in reverse order.

While I have described my invention above in detail, I wish it to be understood that I am not to be limited to the extent of the details therein, but consider that my invention is capable of many changes and different applications without departing from the s irit thereof.

vI c aim:

1. In a device of the character described,

a movable support, a crane lever arm thereon, a power driven tool supported upon said arm, and a pivotal support tor the arm upon the movable support to permit the arm to be folded backwardtv on the movable support when not in use.

2. In a device of the character described, the combination of a crane lever arm, a

power driven tool and a spring support to counterbalance the weight of the lever arm and tool.

3. In-a device of the character described, the combination of a crane lever arm, a

power driven tool supported by the end thereof, power connections for driving said tool and means supported by the crane lever arm for controlling the starting, and stopping of said power connections.

4. In a device of the character described,

the combination of a crane lever arm, a

ported upon said lever arm, power-operating devices for said tool carried by said movable support, power connections for con-' nccting the power-operating devices to said tool, and a hand-operated lever directly supported by the crane lever arm for controlling the starting and stopping of said power connections.

In testimony that I claim the foregoing I have hereunto set my hand.

HENRY W. JACOBS. Witnesses:

ARTHUR V uon'r, M. MIRKLE. 

